Authorities say 61-year-old Thomas McNamara was also sentenced this week in Brockton Superior Court to 10 years of probation upon completion of his sentence.

Prosecutors say McNamara sexually abused the victims over a period of several years, beginning when they were 5, 7 and 9 years old. The victims, who are now adults, graphically described all manner of sexual acts that they say McNamara committed on them. The Enterprise reports that one victim said she had been abused so many times she lost count.